Home / 991,755,531.20-1,368,581,534.87-539,635,365.30

Finding the Fourth Proportional to 991,755,531.20, 1,368,581,534.87 and 539,635,365.30

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Solution

The fourth proportional to 991,755,531.20, 1,368,581,534.87 and 539,635,365.30 is: 744,674,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,755,531.20 : 1,368,581,534.87 = 539,635,365.30 : x
  2. Step 2: Convert to fraction form
    991,755,531.20/1,368,581,534.87 = 539,635,365.30/x
  3. Step 3: Cross multiply
    991,755,531.20x = 1,368,581,534.87 × 539,635,365.30
  4. Step 4: Simplify right side
    991,755,531.20x = 738,534,996,512,407,040
  5. Step 5: Solve for x
    x = 738,534,996,512,407,040/991,755,531.20
  6. Step 6: Final answer
    x = 744,674,441.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.